Container for projectuals

ABSTRACT

A CONTAINER FOR OVERHEAD VISUAL PROJECTUALS THAT SIMPLIFIES THE STORAGE AND USE OF PROJECTUALS BY ENABLYING THE CONTAINER TO BE STORED VERTICALLY ON A SHELF OR IN A FILE DRAWER THROUGH THE UTILIZATION OF A SHELF-BACK.

Feb. 9, 1971 p, ALBEE, JR 3,561,862

CONTAINER FOR PROJECTUALS Filed April 22, 1968 INVENTOR.

ATTORNEY A PERCY FREDERICK ALBEE,JR.

United States Patent Office 3,561,862 CONTAINER FOR PROJECTUALS PercyFrederick Albee, Jr., Barrington, R.I., assignor to Q-Panel Corporation,a corporation of Rhode Island Filed Apr. 22, 1968, Ser. No. 723,181 Int.Cl. G03b 21/32 U.S. Cl. 353-122 2 Claims ABSTRACT OF THE DISCLOSURE Acontainer for overhead visual projectuals that simplifies the storageand use of projectuals by enabling the container to be stored verticallyon a shelf or in a file drawer through the utilization of a shelf-back.

BACKGROUND OF THE INVENTION shelf-back which could go into a normallibrary shelf so that basic imprinting identification which is normallyfound on library books could be used on the spinal part of theshelf-back and the two covers of the book would serve as protection forthe transparencies. Further the container would have means associatedtherewith that would enable it to be readily utilized with existingvisual projection systems or by the utilization of auxiliary stageswhich could adapt the containers to certain types of overheadprojectors. Transparencies, accordingly, are in a form which can beimmediately taken from a library shelf in accordance with the subjectmatter and placed on an overhead projector and shown in the propersequence.

SUMMARY A container for projectuals which comprises a shelfback that issometimes known also as a binder for a book which is provided with meansfor fastening projectuals therein and means at the edge of the shelfback along the free edges of at least one cover to prevent theprojectuals from falling out from between the side walls of theshelf-back or book and to space the covers. Additionally the shelf-backis provided with stiffening means at the spine portion thereof and meansare provided on one cover of the book for fastening the book to anoverhead projcctor.

DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustratingthe container for the projectuals mounted in position on a stage that inturn is received on an overhead projector;

FIG. 2 is a perspective view showing the containing for the projectualswith one cover thereof laid open;

FIG. 3 is a view of the container for the projectuals in closedposition;

FIG. 4 is a fragmentary sectional view taken on line 44 of FIG. 1; and

FIG. 5 is a fragmentary sectional view of the container showing analternate method.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A container generallydesignated 20 is provided with a back wall or spine 21 and a pair ofcovers 22 and 23 that are hingedly secured to the spine. Anchoring meansgener- 3,561,862 Patented Feb. 9, 1971 ally designated 25 may be locatedon the cover 22 and in the illustrated embodiment consists of aninverted U staple 26. The cover 22 which may be made of cardboard orother relatively stiff material will serve as the supply tray for thetransparencies and will be fastened to the overhead projector. It isdesirable, therefore, that this will have longitudinal rigidity and tothis end a reinforcing means 28 in the form of a L-shaped metal angle isplaced at the juncture of the spine 21 and cover 22. Additionally it isnecessary to prevent the projectuals or transparencies 40 from fallingoutside the normal dimensions of the container (see FIG. 3), andaccordingly, it is necessary that a lip be provided at the free edge ofthe completed container. This lip which is shown in the drawings anddesignated as 30 is provided at the edge of the cover 22 and is in theform of an L-shaped angle iron. Since the lip 30 is made of an angleiron and extends in the same direction as the stiffening member 28, goodstability is provided for the cover 22 and mounting a group oftransparencies on the edge of an overhead visual projector. Further inthe storage of transparencies, it is important to avoid any compressiveforce thereon and accordingly the height of lip 30 is preferable thesame as the width of the spine. With a semi-rigid cover 23, alltransparencies will hang free when the container is stored on a shelf inthe position illustrated in FIG. 3 and scratching of the transparencieswill be avoided.

To appreciate the manner in which the container may be utilized, anoverhead projector having a housing 10 is illustrated with a standard 12that mounts a lens projection system 14 thereon in adjustable fashion.On the upper projection surface of the housing 10, a stage generallydesignated 15 has been shown which stage has a transparent window 16thereon and is provided with a supporting shelf 17 and a receiving tray18 for holding the projectuals that have been shown. The shelf 17 may beprovided with a pair of spaced headed pins 19 and these headed pins willengage in the keyhole slot 32 of the container for the projectuals. Analternate means of fastening the projectual container to the shelfextension 17 of the stage 15 is illustrated in FIG. 5. Here the cover 22of the projectual container and particularly at the top edge thereof asat 22' has been laid on the shelf 17 and inserted underneath the stiffspring clip means 35 that is fastened to the shelf 17 by rivet means 36.In this fashion any form of container for projectuals may be afiixed tothe stage without the provision of special spaced pins such as 19.

A projectual may be moved into position from its normal position on thecover 22 onto the transparent member 16 and by suitable registrationdevices, which are not illustrated, may be properly placed in position.The registration devices take a variety of forms and as shown to thoseskilled in the art are utilized for obtaining the registration ofoverlays of transparencies. After the projectuals have been viewed, theymay then be swung out of viewing position onto the tray 18.

The above arrangement provides a means for storing projectuals bysubject matter in book-like containers which may be placed on libraryshelves along with other books and labelled on the spine thereof as tothe material of which it contains. A selected book may be readily chosenfrom this shelf for displaying its projectuals and readily attached tothe visual projection device and by utilizing fixed means formaintaining the projectuals within the container at all times, such asthe staple 26 the projectuals will never get out of order or sequenceand can always be immediately retrieved by the instructor.

I claim:

1. A container for projectuals comprising a shelf-back having a spineand first and second covers extending therefrom, said first cover beinghinged to said spine and metallic stiffening means located between saidsecond cover and fastened to said spine, a lip extending from one ofsaid covers along the edge of that said cover remote from and oppositethe spine, said lip extending substantially a distance toward theopposing cover equal to the height of the spine to prevent theprojectuals in the container from being crushed together, said secondcover having means for attachment to a projection stage of an overheadprojector an inverted U staple anchoring means having its legs fastenedto the top right hand corner area of said second cover with at least oneleg adjacent the lip whereby when the projectual container is detachablymounted on an outwardly extending shelf of a projection stage theprojectuals may be flipped upwardly onto a projection window and then01f to a storage shelf with the projectuals remaining anchored in thecontainer and suspended from the leg of the U staple and held fromoutward pivoting by the lip.

2. A container as recited in claim 1 wherein the stiffening meanscomprises an L-shaped flange fastened at the juncture between the spineand said second cover.

References Cited UNITED STATES PATENTS 635,237 10/1899 Cross 402-77739,436 9/1903 Mumm et a1. 40274X 947,620 1/1910 Payne 40274 1,041,70310/1912 Tirrill 402--77 1,371,102 3/1921 Lewis 40l02 2,721,556 10/1955Zandelin 40l02 2,898,919 8/1959 Kwartler 40277 3,279,109 10/1966 Whittum40106.1 3,438,703 4/1969 Winnernann 353-120 HARRY N. HAROIAN, PrimaryExaminer

